Robaxacet Extra Strength

Prescription medicineOnly Available By Prescription

Top brand choice

Strength Pack Size Qty
400mg Methocarbamol / 500mg Acetaminophen
Pack Size

You'll have option to make 4 interest-free payments by credit card once your order is confirmed using

Top Generic choice

Strength Pack Size Qty
400mg Methocarbamol / 500mg Acetaminophen
Pack Size

You'll have option to make 4 interest-free payments by credit card once your order is confirmed using

What if I find a lower price with another pharmacy?

We guarantee the lowest price on all of our prescription products. If you find your medications cheaper at any other recognized licensed mail order pharmacy, we will not only match their price, we will beat it by 25% of the difference. It is our 125% price match guarantee!

Example: If you find a product on Canada Drugs Direct for $50.00 and find the same product for $40.00 at another mail order pharmacy, we will provide you with a $12.50 discount, bringing your total to $37.50.

To get the discount please make sure to mention the price match to the customer service team when they call to collect payment for your order. Or call toll free at 1-888-904-8467 to place the order through the phone.

Terms & Conditions of Program

  • Guaranteed lowest price is only valid at the time of sale.
  • We will only match the current advertised price.
  • Products must be identical and in stock at the time of placing an order with a licensed mail order pharmacy. They must be an online Canadian pharmacy with an address in Canada.
  • Products must be authentic in brand and size (same manufacturer, same country of manufacture, same pack size, same strength and same quantity).
  • Products must be new. We cannot match the price of any used, short expiry or expired product.
  • Price match can only be issued over the phone with our customer service team. Please note at this time we cannot offer price matching for the products Ozempic or Saxenda.
What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.


Robaxacet Extra Strength contains two medications: acetaminophen and methocarbamol. It is used to treat back pain, tense neck muscles, sprains, and strains that are caused by muscle spasms.

Robaxacet Extra Strength is available in an oral caplet. Each caplet contains 500 mg of acetaminophen and 400 mg of methocarbamol.

Fact Table


Methocarbamol: C11H15NO5 Acetaminophen (Paracetamol): C8H9NO2


US DailyMed, US FDA


Methocarbamol: 50.7 to 124 percent, Acetaminophen: 63–89%

Legal status


Chemical Name


Elimination half-life

Methocarbamol: 1-2 hours Acetaminophen: 1-4 hours

Dosage (Strength)

400mg Methocarbamol / 500mg Acetaminophen


Consult doctor


Robaxacet Extra Strength

Protein binding

Methocarbamol: ~46-50% Acetaminophen: 10-25%

PubChem CID

Methocarbamol: 4107 Acetaminophen: 1983


Methocarbamol: a682579 Acetaminophen: a681004


Methocarbamol: 6832 Acetaminophen: 46195

ATC code

Methocarbamol: M03BA03 Acetaminophen: N02BE01


Methocarbamol: DB00423 Acetaminophen: DB00316


Methocarbamol: D00402 Acetaminophen: D00217

Routes of administration

By mouth


Take Robaxacet Extra Strength as directed by your doctor. Tell your doctor or pharmacist if you have any questions or concerns about the medication.

Robaxacet Extra Strength dosage: 

Adults and children aged 12 years and older are recommended to take two caplets by mouth every six hours. No more than eight caplets should be taken within 24 hours.


Acetaminophen and methocarbamol are the active ingredients in Robaxacet Extra Strength. Corn starch, crospovidone, D and C Yellow No. 10, FD and C Blue No. 1, hypromellose, magnesium stearate, methylcellulose, polyethylene glycol, povidone, pregelatinized starch, silicon dioxide, sodium lauryl sulfate, sodium starch glycolate, and stearic acid are the inactive ingredients.


Patients who have an allergy to acetaminophen, methocarbamol, or any of the medication's other ingredients should not take Robaxacet Extra Strength.

Patients who are taking medications that contain acetaminophen or methocarbamol should not take Robaxacet Extra Strength. Talk to your doctor or pharmacist if you are unsure whether or not you are taking medications that contain acetaminophen or methocarbamol.


  • Before you start taking Robaxacet Extra Strength, inform your doctor of:
    • All the medications you take, including prescription and over-the-counter medications
    • Your allergies
    • Your health history and current medical problems
    • Your pregnancy or breastfeeding status
  • Robaxacet Extra Strength contains acetaminophen. Taking more acetaminophen than is recommended in 24 hours, taking Robaxacet Extra Strength with other medications that contain acetaminophen, and taking Robaxacet Extra Strength with three or more alcoholic beverages per day can cause severe or fatal liver damage. Liver damage may cause yellow skin or whites of the eyes, dark urine, sweating, nausea, vomiting, stomach pain, tiredness, or loss of appetite. If you develop any of these effects, seek emergency care immediately.
  • Avoid driving or operate machinery until you know how you are affected by Robaxacet Extra Strength.
  • Keep Robaxacet Extra Strength out of reach of children.

Side Effects

Drowsiness, dizziness, nausea, or light-headedness are some Robaxacet Extra Strength side effects; however, if you experience bothersome or persistent side effects, call your doctor right away.


Robaxacet Extra Strength. Pfizer Consumer Healthcare; 2020.

IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.

product-reviews Product Reviews